ABSTRACT
The design of MG300/700-WD Shearer’s cutting unit
This paper presents the development history, the composition and the principle of shearers in brief. On the foundation of analyzing the trade background of coal industry and mining equipment, look ahead the development of shearers, and according to the present development situation of shearers, we carried out the design of MG300/701-WD Shearer’s cutting unit.
This design firstly fixed on design scheme and selected basic components, and besides, developed the reliability analysis of transmission system. The design of MG300/701-WD Shearer’s cutting unit. It is made up of a gearbox and moderate breeze gear wheel transmission that the MG300/701-WD type mining machine cuts the cutting department, Cut the electrical machinery of cutting department and put to fix up horizontally in the rocker arm, The power that the motor outputs leans on a round of transmission of department of gear wheel and planet round via the tertiary straight tooth, Urge the cylinder to rotate finally. And gears and involute splines’ tolerances of geometrical quantity were analyzed. At the same time, introduced the installation, maintenance and fault disposal of this cutting unit. The cutting unit of MG300/701-WD Shearer has reliability and installation maintainability.
Keywords: shearer; the cutting unit; planetary gear drive
